Reversible disk plow



March 23, 1954 C. F. BARRETT, JR

REVERSIBLE DISK PLOW 2 Sheets-Sheet 1 Filed April 17, 1950 INVENTOR.Char/es FEarre/Vfi HTTOANEY March 23, 1954 C. F. BARRETT, JR

REVERSIBLE DISK PLOW 2 Sheets-Sheet 2 Filed April 17, 1950 U U. Q mu 5 w9 I W ..=I-=. 5 5% AW -m INVENTOR. Char/es FBarrg/ffi BY Patented Mar.23, 1954 UNITED STATES rareh'r OFFICE REVERSIBLE DISK PLOW Charles F.Barrett, Jr., Plainview, Tex.

Application April 17, 1950, Serial No. 156,479

4 Claims. (01. 97-32) My invention pertains to a disc plow.

An object of my invention is to provide a disc plow which is reversible,and wherein the disc plow can be reversed through the agency of thehydraulic means usually present in a tractor.

A further object of my invention is to provide a reversible disc plowhaving several discs and which automatically reverses by means ofcertain hydraulic elements.

A further object of my invention is to provide a reversible disc plowwherein the discs are automatically reversed to the correct pitch as theentire plow arrangement is reversed.

A further object of my invention is to provide a self-adjusting controlwheel or coulter.

A further object of my invention is to provide other advantages whichwill be apparent.

With these and other objects in view, my invention consists in theconstruction, arrangement, and combination of the various parts of mydevice, whereby the objects contemplated are attained, as hereinaftermore fully set forth, pointed out in my claims, and illustrated in theaccompanying drawings, in which:

Figure l is a plan view of a detail,

Figure 2 is a plan view of the plow in one of its elevated positions,

Figure 3 is a detail,

Figure 4 is a side elevation of Figure 2,

Figure 5 is a detail,

Figure 6 is a plan view of a detail of the coulter A wheel assembly, and

Figure 7 is a sectional view taken substantially along the lines 7--| ofFigure 5.

I have used 'the character H) to indicate bracing members attachable tothe rear portions I I of a tractor, the characters l2 and i3 indicatingportions operable from thehydraulic arrangement of the tractor, themember l2 including the pins or guides l4 receiving the members l5, andattached across the members it! a transverse bar 16 to which is attachedat I! the rod l8 which is threaded at l9, terminating in the eyelet 29which is pivotally attached at ii to the vertical bar 22, which bar isrigidly attached to the forwardly extending framework portions 23, whichportions 23 are spaced apart as shown principally in Figure 2. Attachedto the members 23 are the ears 24 which are pivotally secured at 25 to alatch bar 25 which latch bar is pivotally attached at 21 to a hydrauliccylinder 28.

The hydraulic cylinder 28 communicates at 29 with a suitable tube 30which passes to the hydraulic arrangement of the tractor, the .cylin- 2der including a suitable piston which is attached to a rod 3! to whichrod is attached at 32 the keeper members 33 having the sloping faces 34and 35.

Attached between the members 23 is a journalling member 36 in which isreceived the vertical pin 3i which pin is attached to the furtherframework portions 38. Attached between the portions 38 are the furtherbearing portions 39 in which are fitted the vertical shanks 40 extendinginto the angularly positioned arms M to which arms ii are freelyjournalled the hub portions 42 of the plowing discs 43. Attached to theshanks til are the further arms 'M which are pivotally secured to asynchronizing bar 45.

The foremost shank 40 is secured to a further arm G5 to which isattached the post 4'! to which is attached at 48 a further arm 49 towhich arm 4!; is attached a pin 50 upon which pin is mounted a roller5|, the roller 5| being positioned between the framework members 23.

The bar 22 is secured to a transverse plate 52 to which are attached thedownwardly extending cars 53, and attached to the ears 53 is an arcuatemember 54 having the limiting stop members 55 secured thereto, themembers 55 being adjustable within the slots 55.

Attached to the framework portions 38 are the transverse bars 57 havingthe openings 53, which openings can selectively receive the verticalpins 59. Attached to the rod 3| at 60 is a spring 61 which is secured atB2 to a further rod 53 which rod 63 is attached at 64 to one of theplate members B5 to which plate members are attached the substantiallylengthened vertical pins 55. The plate 55 is attached to the upper endof pin 31' and is rigid therewith.

Bearing against the latching bar 25 is a compression spring 5'! whichalso bears against the flange 58 secured across the members 23, andpivotally attached to the latching bar 25 is the rod 59 receiving thespring 61 which rod also passes through the member 68 (see Figure 7) isattached at to the chain M which is secured at 82 to the bar 12.

Attached to the end spindle 4B is a bar 83 having the journallingportion 34 in which is journalled a vertical spindle 85 attached to thefurther horizontal bar 86, and attached to the bar 86 is a vertical barBl to which is attached the further horizontal shaft portion 88 uponwhich is journalled the coulter wheel 89 having the indentations 90therein.

Pivotally attached at ill to the horizontal bar 86 is a threaded stud 92threadably engaging the member 93, which is adjustably and pivotallypositioned at 94 within a slot $25 which slot is provided in the bar 98which is attached to=one of the framework portions 38.

The bar 49 (see Figures 2 and 5) includes the spaced openings 9": forproviding adjustable attachment of the roller member 5! at desiredpoints.

tosupport the vertical spindle "M 'at a preselected height.

Attached-between the framework membersitil is the limiting stop member99.

Attached to the cross bar it are the arms I which are pivotally securedat ltd to the members Ill.

various members ll), i'ile, etc. to 'swingzdownwardly, thereby carryingthe plow downwardly to the operating or plowing position. As soon as thepressure in the pipe 3B1isreleasedywhich pressure'will be .naturallyreleased *since it is connected vot the :same source :of hydraulic pres-.sure, the latch .member 23 will :swing toward the tright, or to theposition shown in Figure .7, due to this .lackxof pressure, and due to"the pressure of the spring 6?, and wherebythe latch ;:member willllieto one side of the pin 59, so

that the arrangement will then be locked in this position, and .the plowcan then function with the discs providingthe plowing action.

It will be noted that the engagement of the roller "5|, whichis attachedto the arm 49, with the framework members 23 will :swing the entire setof discs .43 to thesame "angle with .re-

:spect to thelineof travel, due to .the fact :that

all of the discs are attached to 'various arms A4,:and which armsarepivoted tothe synchronizingbar-45. vIn thismanner, when the framework-.38.is swung .to the other side, as will be explained, -the arms willalso swing by virtue of this ongagement, carrying the discs about to thesame angle of the line :of travel at the other side, or .in otherwordsywhen the framework .38 occupies the position shown'bythe dottedlines in Figure .5. Therefore, when the tractor turns aroundandgoesbackdown the field, and after the plow frame has been reversed,the discs will still occupy the same relative angular position due to:this .feature. releasedin the cylinder 28, the rod 3i will traveltoward the right as viewed in Figure 2, releasing theface 3d from thelowerpinfit and swinging the and toward the gposition shown :in Figure 1until the upper pin 6'6 rides over the portion 33 and lies against therod 3i as shown. The

A pair of set collars 98, which can be adjustably locked by means of setscrews, serve Also, .as soon as the pressure is plow elements will thenoccupy this position during the plowing action.

When it is desired to reverse the frame, the hydraulic pressure isapplied to the various members I 2, 13, etc., which raises the arms l5and H30, and raises the plow to the non-operating position.

However, v.as soon as the pressure is applied through ltheitube 30, the'latchiit willzswing to the position shown in Figure 4, whereby thelatch will be released from engagement with the pin 59.

Atsthiszpoint the continued forcing of the rod 31 in the direction ofthe arrow M32 as shown in "Figure '1, will tend to pull the bar 63laterally in thecdirectionofthe arrow m3 due to the angular dispositionof the rod 3| with respect to the "'bar'63, the spring BI serving toprovide the connecting link for the pulling action. The motion of themember 33 intthe .direction :of theiarrow l '02 then continues .furtheruntil "the rod .31 will pass 'over'the center of the pin32?,1'0131113Wd'1d- 1y as vi'ewedin Figure 1, Eat which point the-entireframework 38' will be :swung in the ;,direction of the arrow 1G3 and tothe other =-dotted position as shown rinFigureS, thereby ,placing theplow inithe opposite position to that shown in Figure 2, so that after"the pressure is again released, which'locksthe arrangement, the plowwill then be positioned :in .its opposed location. .As a result, it"will -be.not'ed that when ibis-desired to reverse the plow, .all thatis necessaryris :to "apply thehydraulic pressure, whereupon the plowwill .raise ;'and reverse itself :automatically .at the same timeandafter each "reversal it'can be placed down in "the -plowing position itsreversed position, whereupon by raising theqolow again it will reverseagain, this arrangement thereby providing .a convenient-methodofoperation.

The stopmember .99 abuttinglagainst thelmem- .bers will provide meansfor holding theplow in its plowing position in :additionto the latchingmethod described, and it will be noted, as explained heretofore, thatthe roller 5| can be placed in selected openings .9? for adjusting theamount of pitch of the discs-43,50 thatby virtue of this construction,the discs canbe placed at any angle desired.

.The -.cou1ter wheel 89, which ,provides anontrol wheel as well, willalsoswing .to either-side, dueto .the constructionas shown, andmaintaining its correct angle with respect to 1the;-line .of travel.This .coulter wheel adjustment can be varied .orpitched .as desired byvirtue of .the threaded member.,92 .engageable with the member93, sothat the :coulter wheel can be set .to :any v:angle. .The. frameworkwheel 18 .can :be adjusted vertically as :desired 'by.means o'f..thecollars 98, and as explained, Figure -4;showing the wheel in itsapproximate raised position, with the lower edges of the discs ,being.lower naturally due to .the .fact that they will enter the ground. 1

. .It will now be .noted that .I have provided :52. reversibleplow-which includes a variety .of features, the advantages of which havebeenex- ,plainedin theobjects ofmy-invention, thisplow also includingother advantages which are readily apparent.

Some changes may be made in the construction and arrangement of theparts of my intention to cover by my claims any modified forms ofstructure or use of mechanical equivalents which may be reasonablyincluded within their their scope.

I claim as my invention:

1. A reversible disc plow comprising a framework including a pluralityof plowing discs attached thereto said discs including shanks attachedthereto, a further framework for attachment to a tractor, said frameworkbeing pivotally attached to said further framework, hydraulic means forreversing said framework whereby said discs can be swung to one side ofthe direction of travel or the other, said hydraulic means comprising ahydraulic cylinder, means communicating between said cylinder and thetractor hydraulic system, a ram piston in said cylinder, a rod attachedto said piston, spring means attached between the end of said rod andsaid framework for swinging said frame- 2. A reversible disc plowcomprising a framea work including a plurality of plowing discs attachedthereto said discs including shanks attached thereto, a furtherframework for attachment to a tractor, said framework being pivotallyattached to said further framework, hydraulic means for reversing saidframework whereby said discs can be swung to one side of the directionof travel or the other, said hydraulic means comprising a hydrauliccylinder, means communicating between said cylinder and the tractorhydraulic system, a ram piston in said cylinder, a rod attached to saidpiston, spring means attached between the end of said rod and saidframework for swinging said framework, said discs being mounted forpivotal movement in said framework and including lever arms attachedthereto, a synchronizing bar pivotally attached to said lever arms formoving said discs to pre-determined angles, a bar attached to one ofsaid disc shanks including a roller engageable with said furtherframework whereby swinging of said framework will cause said discs to bepitched at the same angle to the line of travel when swung to eitherside, a keeper member attached to said rod, a plate member attached tosaid framework including a pair of vertical pins attached thereto, saidkeeper having sloping faces, either of which is engageable with eitherof said pins, a bar attached to said plate member, said spring meansbeing attached between said bar and said rod whereby said bar will swingsaid plate and said framework when pressure is applied to the pistonattached to said rod, and whereby said pins will provide stop meansagainst said keeper member and said rod.

3. A reversible disc plow comprising a framework including a pluralityof plowing discs attached thereto said discs including shanks attachedthereto, a further framework for attachment to a tractor, said frameworkbeing pivotally attached to said further framework, hydraulic means forreversing said framework whereby said discs can be swung to one side ofthe direction of travel or the other, said hydraulic means comprising ahydraulic cylinder, means communicating between said cylinder and thetractor hydraulic system, a ram piston in said cylinder, a rod attachedto said piston, spring means attached between the end of said rod andsaid framework for swinging said framework, said discs being mounted forpivotal movement in said framework and including lever arms attachedthereto, a synchronizing bar pivotally attached to said lever arms formoving said discs to pre-determined angles, a bar attached to one ofsaid disc shanks including a roller engageable with said furtherframework whereby swinging of said framework will cause said discs to bepitched at the same angle to the line of travel when swung to eitherside, a keeper member attached to said rod, a plate member attached tosaid framework including a pair of vertical pins attached thereto, saidkeeper having sloping faces, either of which is engageable with eitherof said pins, a bar attached to said plate member, said spring meansbeing attached between said bar and said rod whereby said bar will swingsaid plate and said framework when pressure is applied to the pistonattached to said rod, and whereby said pins will provide stop meansagainst said keeper member and said rod, a latch bar pivotally attachedto said cylinder, a frame member attached to said framework includingfurther pins therein engageable against said latch bar for retaining theframework in plowing position, and whereby release of pressure on saidcylinder will swing said latch bar out of engagement with said furtherpins.

4. A reversible disc plow comprising a framework including a pluralityof plowing discs attached thereto said discs including shanks attachedthereto, a further framework for attachment to a tractor, said frameworkbeing pivotally attached to said further framework, hydraulic means forreversing said framework whereby said discs can be swung to one side ofthe direction of travel or the other, said hydraulic means comprising ahydraulic cylinder, means communicating between said cylinder and thetractor hydraulic system, a ram piston in said cylinder, a rod attachedto said piston, spring means attached between the end of said rod andsaid framework for swinging said frame-' work, said discs being mountedfor pivotal movement in said framework and including lever arms attachedthereto, a synchronizing bar pivotally attached to said lever arms formoving said discs to lure-determined angles, a bar attached to one ofsaid disc shanks including a roller engageable with said furtherframework whereby swinging of said framework will cause said discs to bepitched at the same angle to the line of travel when swung to eitherside, a keeper member attached to said rod, a plate member attached tosaid framework including a pair of vertical pins attached thereto, saidkeeper having sloping faces, either of which is engageable with eitherof said pins, a bar attached to said plate member, said spring meansbeing attached between said bar and said rod whereby said bar will swingsaid plate and said framework when pressure is applied to the pistonattached to said rod, and whereby said pins will provide stop meansagainst said keeper member and said rod, a latch bar pivotally attachedto said cylinder, a frame member attached to said framework includingfurther pins therein engageable against said latch bar for retaining theframework in plowing position, and whereby re- .a amem lease of measureon said. cylinder will vswing .Beferences Gited the file of this patent-':-;ai.o1let-1:111bay: out m engagement with said i-un- A A Ithernpins, brackets attached :to said tractor, piv- UNITED STATESPATENTS \ota'l arms secured to said brackets, means for Number Name MDate enerating saidvpivofzalermsfromEthetracwrhy- 5 2,041,216 -S, J.or.en wwmeufi May. 9, 1.936

-drau1ic:system,;a further bracket for suspend- 2,08%629recovielluvvewn-w-yq-xJImeeZZ,193:7 ing wthe plow ,fram'ework lpivotally.secured 170 2 ,163 832 goviellp .,June 2'1, H1939 said arms, andwhereby hydraulic pressure to 2,202,348 Leach v e. ,-..,.-e ..--fi M1128, 19,4 -said cy1inder operating simultaneously with :the

raising action ;of said .arms will operate said 10 FOREIGN PATENTS:pistqn rand :saiid latch and keeper members. Number Country DateCHARLES F. BARRETT, JR. 03,299 Australia ,....,.M--v.-. Mar. ,3, 19.38

